11 results
Forced vital capacity (FVC) curves comparing normal, obstructive, and restrictive disorders. Curves are as they appear
curves comparing normal ... , obstructive, and ... commonly available spirometers ... #Restrictive #Normal ... #Comparison
Patterns of pulmonary dysfunction revealed by flow-volume loops. For comparison, a normal loop is shown with
For comparison, ... a normal loop is ... Diagnosis #PFTs #Spirometry ... #FlowVolume #Loops ... #Normal #pulmonary
Flow Volume Loops - Common Patterns
A. Normal
B. Emphysema
C. Unilateral Main Stem Bronchial Obstruction
D. Fixed Upper Airway
Normal B. ... Stem Bronchial Obstruction ... Fixed Upper Airway Obstruction ... Diagnosis #PFTs #Spirometry ... #FlowVolume #Loops
Asthma vs COPD Presentation and Diagnosis
Asthma:
 • Epidemiology: Age usually < 45, History (personal or family)
Asthma vs COPD Presentation ... and Diagnosis Asthma ... spirometry - FEV1 ... often normal or ... #COPD #comparison
Asthma
Chronic lung disease characterized by airway inflammation, airway and variable expiratory air flow obstruction
There are 2
Asthma Chronic ... used to identify obstruction ... lower limit of normal ... Reversibility on spirometry ... @PulmPEEPs #Asthma
Pulse Abnormalities - Differential Diagnosis Algorithm
Unequal/DeIayed:
 • Obstructive arterial disease (ie. Atherosclerosis)
 • Aortic dissection
 •
Abnormalities - Differential ... Unequal/DeIayed: • Obstructive ... Takayasu disease • Normal ... Exacerbation of Asthma ... Disorders #Cardiology #Differential
Acid Base Disorders - Blood Gas Interpretation

Steps for Blood Gas Interpretation: 
1. Acidemia or Alkalemia? 
2.
Differentials? ... Myasthenia gravis) - Obstructive ... disease (COPD, OSA, Asthma ... hypoventilation) - Airway obstruction ... Base #Gas #VBG #differential
COPD phenotypes:  Blue Bloaters vs. Pink Puffers
The two most stereotypical forms of COPD are pink
clearance and airway obstruction ... maintain a near-normal ... is similar to asthma ... obesity plus airflow obstruction ... #BlueBloaters #Comparison
►
Causes of Chronic Cough - Differential Diagnosis Algorithm

Abnormal Chest X-Ray:
 • Chronic Infection (Eg. Fungal, Tuberculosis)
Chronic Cough - Differential ... Diagnosis Algorithm Abnormal ... Bronchiectasis Obstructive ... FVC < LLN): • Asthma ... Lower Airway: • Asthma
Vasculitis - Differential Diagnosis Framework

When to Consider Vasculitis:
• Purpura, ischemic skin lesions
• Mononeuritis multiplex
• Hematuria, proteinuria,
Vasculitis - Differential ... Vasculitis Differential ... strength & enzymes normal ... Eosinophilia, asthma ... Glomerulonephritis, arthritis, obstructive